1980 SKODA 105S lock

I-
.'t Fig.
15.3/3 -
Oil Filter
oil f ilter bowl
witlr f ilter
element
centre-boll oil pressure
switclr pressure
oir. When driving often
on dusty roods,
ihe cleoning intervols
should
be shortened by
holf. For oir cleoner mointenonce in tropicol
re'
gions refer to
ChoPter 16.2.
Air Cleoner -
winter oPerotion
Remove the rubber
cop from
the cover exten-
sion orm ond
use it to stop the mouth of
the
orm. Fit o guide extension into
the cleored hole
in the ornr ond
insert the
corrugoted poper hose
(included in the
cor equipment) into
the
ex-
iension ond
the holder on the
intoke ond
ex-
houst monifold.
Give the
hose the required shope by
bending
it slowly ond corefully. Above
oll, ploce
it into
the holcier so thot
there is
o suff icient distonce
(wide enough to
insert o
finger) between it
crnd the exhot-tst monifold.
Tightening of
cYlinder heod bolts
The cylinder heod
bolts should be tightened
in the running-in period before
the gosket gets
settled ond then
ofter every replocement of the
gosket, i.e., ofter
obout 1,000
kilometres' For
itre tightening procedure,
s9e
Chopter
-2'16'
Check'ilg of vilve
cleoronce ofter
every tighten'
ing of tlie
cylinder heod
is o
routine procedure
which must not be omitted.
Volve Cleoronce
For checking procedures
ond odiusting volues,
refer to ChoPter 2.13.
Alternotor V'belt
Tensioning
Loosen the
nuts of the bolts
in the olternotor
f longe (fostening
it to
the engine ond
the strut)
ond'of itre
bottJ holding down
the strut on
the
olternotor, ond
swing
oside (tip)
the olternotor'
Adiust the
belt so
thot it gives
woy 10- to
15 mm midwoy between the
belt pulleys
when
depressed lightly (ot
if o- weight of obout
2 kg were opplieal with
the
finger ot this point'
LoCk the
olternotor in
this position
by tighten-
ing properlY
oll the nuts.
Belt dimensions: 9x9.5x1,0O0 mm.
To Cleon the
Distributor
The contoct breoker points, the
cover, ond
the rotor orm
of the distributor must never
be
greosy or dirty. Scrope off
ony burns on the
distributor cover.
lf you hove
cleoned the
distributor with
oetrol, do
not ref it the cover till ofter
the petrol
hos comPletelY evoPoroted.
222
oll
the greose
into the beorings. Tighten
the
cop thoioughly so
thot it connot be worked
loose by vibrotion.
Air Cleoner -
cleoning ond
replocing of
filter
element
Unclosp the cover
fostening clips
and lift
owoy the lid. Depress the
cross broce in
the
1ock6t, rotote
it
slightly to disengoge it, ond
withdrow the filter
element. Wipe
cleon the
inside of the
iocket, cleon
the filter
element or
reploce it with o new
one, ond reclose the oir
cleoner proceeding
in reverse order.
Shoke ond
top the filtet element to
rid it of
clirt porticles, oncl
blow it off ond through with
Fiq.15314
-
Lubricotor of
Woter Pump Beorings

Fig.
15.3/8 -
Distributor Adiusting Elements
1 -
contoct holder, 2 -
rotor orm, 3- com,
4 -
distributor brocket, 5 -
distributor brocket
clomping bolt
Alwoys turn the engine clockwise to eliminote ony ploy
in the distributor drive geor
ond to
ovoid loosening of the bolt. To relieve the
com-
pression resistonce, it
is recommended to bock
off the sporking plugs.
b) Stroboscopic method:
When using this method, the volues of the
bosic ignition timing ond
the odvonce con-
trolled by the centrifugol timing control (for
its
diogrom refer to Chopter 13.5) should be odded
upwhile multiplying bytwo
the odded upvolues
occording to the diogrom. Any effect of the
vocuum control must be
eliminoted by discorr-
necting the respective hose (connecting
the
distributor vocuum unit with the corburettor).
The meosuring procedure
is indicoted by the
diognostic equipment itself.
To Adiust ldling Speed
Use the oir-correction screw (speed
cor-
rection screw). The speed decreoses when ro-
toting the screw clockwise ond increoses when
rototing it onticlockwise.
Adiust the idling speed in occordonce with
the tochometer ond within the limits specified
in the following porogroph "To
Adiust ldle
Run". The engine must be wormed-up
before
storting the odjusting procedure (see
olso the
following porogrophs) ond its ignition must be
in perfect
condition (distributor
contoct-breoker
points, sporking plug
electrodes, ond ignition
odvonce).
N o t e : For the bosic position
of the odiusting
screw refer to Chopter 2.19 - "Mointenonce
ond
Adiusting". Fig.
15.3/9 -
Air-correction Screw -
idling speed
correction screw
To Adiust ldle
Run
Acljust the contoct-breoker point
gop,
the gop
of the sporking plug
electrodes, ond
the ig-
nition odvonce. Then check
the
volve cleoronce
(if there is no cleoronce, odiust
the
volves),
cleon the oir intoke filter
element, ond moke
sure thot the occelerotor pedol link hos
the re'
quired free trovel -
see Chopter 12.2-
Use o needle to remove the plug
covering
the fost-idling screw
ond let the engine run ot
obout 2,000 r. p.
m. to ottoin on oil temperoture
of 70oC. Insert the probe
of the thermonreter
into the hole for the oil diPstick'
Now connect the
speed indicotor (tocho-
meter) ond the onolyzer of
corbon
.monoxide
(contoined in exhoust fumes). Use
the oir'cor-
iection screw (Fig.
15.3/9) to set the
speed
-r-?n
at 800 l;; t.
p. ni. cnd the fost-idling screw
(Fiq. 15.3/10) to odiust the
content of corbon
moioxide to 2*0.50/s or the oir-fuel proportion-
by-weight mixing rotio,
comporoble with
the
specif ied corbon monoxide content, to
1+.2 +$.t.
After about one minute of
the continued idle
running recheck the odiustment ond
correct it,
if necelsory. Close the hole
with the
fost-idling
screw by driving in o
new plug with
its bottom
outword.
Note: For the bosic position of
odiusting
screws refer to Chopter 2.19 - "Mointenonce
ond Adjustment".
To Lubricote Accelerotor Mechonism
Pour severol drops of oil into
the end of the
bowden coble tubing ond lubricote both
ioints
(on top ond below)- of the corburettor pull-rod
itself with obout one drop of oil. Then
depress
224

friction focing. lnodequote
ploy
results irr o too
short free trovel of the clutch pedol
ond on
olmost immediote clutch disengogement. Access
to the releose
cylinder con be goined
os de-
scribed in the previous porogroph
on clutch
lubricotion. Hold the rod protruding from
the
relose cylinder ond force
from it corefully the
releose lever, ogoinst which it is restingi
the
lever con be relieved by disengoging the ten-
sion (pull-off
) springs.
ln service, the forcing-off
must be ot leost
2 mm. Adiust it to 4
to 5 mm by odiusting the
length of the rod. After hoving
loosened the nut
on the rod
of the releose cylinder, rotote
the
releose finger to obtoin the correct rod
length.
Then retighten the nut, thus locking the releose
f inger in its position
on the rod.
lf the ploy
is correctly od justed,
the f ree
trovel of the
clutch pedol
pod should ronge
from 40 to 50 mm. lt should not be ollowed to
drop below '!0
to 15 mm. lf the described od-
justing procedure foils to bring the required
result, it is necessory to odjust the clutch
mech-
onism in occordonce with
informotion con
toined in Chopter 3.2.
Bleeding the Glutch Hydroulic System
The movement of the clutch pedol
is trons-
mitted hydroulicolly to the clutch releose cylin-
der. The couses ond symptoms of penetrotion
of oir into the hydroulic
system (similor
to the
broke hydroulic system) ore described in detoil
in the section deoling with brokes. The pro-
cedure of bleeding the clutch is the some os
wherr bleeding the brokes -
see Chopter 15.8.
Fig. 15.411-
Adiusting Elements of
Clutch
Control Mechonism
I -
releose cylinder rod, 2 -
releose cylinder,
3 -
releose lever, 4 -
bleed screw 15.5 GEARBOX
AND FINAL DRIVE UNIT
Checking Oil
Level ond Topping'up
Oil
Renrove the centre cover ol the
f loor boord in
the luggoge comportment behind the
reor seots.
Pull off the filler neck cop ond use
the dipstick
to check the oil level. With the diPstick inserted
into the neck up to its seoling ring, the oil level
should be obout 8 mm obove the upper line'
For this check, the cor
should be ploced
on
level ground.
After hoving topped up the oil,
woit obout 2 minutes (while
oil flows from the
georbox proper
into the finol drive ond its level
is stobilized), ond then recheck
its level-
Fig. 15.5/1 -
Tronsmission Unit Filler Neck
Fig. 15.512 -
Tronsmission Unit Droin
Plugs
ond Inspection Plug
1 -
georbox droin plug,
2 -
finol drive droin plug,
3 -
inspection plug,
4 -
switch of reversing lcmps
(except SKoDA 105 S)
ffi
;rt'i,*
tiiffi
ii.! i;
br'ill
226

I 5.7*
1
5.8
sell-lubricoting type
but the greose is intended
to rid the beorings of ony moisture which moy
get to them post
the seols in certoin circum-
stonces. Apply the greose
gun
till the lubricont
seeps post
the upper rubber cuP.
Front Wheel Toe-in
For meosuring
ond odiusting the toe-in, see
Chopter 6.1.
Fliminqtion of
King Pin PloY
Remove the coter pin
of the king pin
nut ond
rotote the nut to the next cotter pin
hole pos-
ition. lf the ploy
is not elinrinoted ond no
friction sets in with the nut in this position,
continue rototing it
until this condition is
ochieved -
see Chopter 6.5, porogroph 21. Lock
the nut in the f irrol position
with the cotter pin
Fig. 15.712 -
King Pin Hold-down
cnd Adjusting Ntit
Note: irr the list
of servicing (mointenonce)
iobs,
I,he porogroph on "Checking
Front ond Reor
Wlreel Brokes" includes
o) inspection of the broke-shoe lining ond its
replocement, if necessory
b) in the cose of the front broke, the cleoning
ond inspection of the protective (dust) cups
of pistons octing on the broke pods (shoes),
in the cose of the reor broke, the inspection
of the wheel cylinder dust cups (boots),
ond
in both coses the replocement of domoged
ports.
i5.8 BRAKE SYSTEM
Broke Fluid Tonlk -
filling
The brake f luid tonk is instolled in the boot
{inoin luggcrge comportment)
cnd closed with Fig.
15.8/1 -
Broke Fluid Tonk
o screw cop. lt serves
olso the r:lutclr lryrlrotrlic
control systenr. Keep the brqke fluid level withirr tlre ronge
of the moximum filling, i.
e., not lower
thon
10 mm below the "MAX"
mork or so high thot
it just
covers the pcrtition
woll of the tonk
which con be seen on looking inside the tonk.
Observe obsolute cleonliness when filling
in
the broke fluid through the screen in the tonk
filler neck. Refer to
Chopter 15.2 for recon'r.
mended broke fluid bronds. For broke fluid hondlinq precoutions, see
Chopter 9.9.
Brqke Fluid Chonge
The broke f luid obsorbs otmospheric humidity
ond the chcnge of its properties
is opt to offect
broking ond even bring obout corrosion of some
ports of the broke system.
The time period,
in which these chonges
con
toke ploce,
connot be defined with ony pre-
cision. Therefore forestoll troubles ond chonge
the broke fluid in the broke ond clutch system
every few yeors (preferobley
two to three
yeors ) .
Suck out the old f
luid from
the tonk, fill in
fresh fluid, ond remove the bleeding screws
one
ofter onother to let the old fluid be forced out
by the fresh
one from oll bronches of the broke
line to the clutch -
see the broke ond clutch
bleeding procedure.
Broke Bleeding Air con get
into the hydroulic system
of the
brokes either due to lock
of the broke fluid in
the tonk (low
level) or when removing
or dis-
montling some ports
of the hydroulic line. lf
there is o smoll omount of oir in the hydroulic
system, the pedol broke feels "spongy"
ond the
broke efficiency decreoses. Ingress of o lorge
228

r
5.9-15. r
2
Dismontle the housing, remove
old greose,
cleon the individuol ports,
opply fresh greose,
ond reossemble the housing. Sook the felt rings
on the links (pull-rods)
in engine oil.
15.10 WHEELS AND TYRES, SNOW
CHAINS
Tyre Inflotion, Boloncing
ond lnterchonge
of Wheels
The procedures ore outlined in
Chopters 10.1
through 10.3. Snow
choins ond their use ore
deolt with in Chopter 10.6.
Wheel Toe-in -
see Chopter 16.1.
Shock Absorbers -
see Chopter 8.3 "Shock
Absorbers ".
15.11 ELECTRTCAL EQUTPMENT
Checking electrolyte level ond topping up --
see Chopter 13.2.
Sporking plugs -
electrode gop
odiustment,
etc. -
see Chopter 13.7.
Stqrter motor -
exqminqtion ond renewol of
brushes, etc. -
see Chopters 13.11 through 13.14.
lgnition timing, odiustment of contoct breoker
point gop, distributor lubricotion -
see Chop-
ter 15.3.
15.12 BODYWORK -
UNDERBODY
Woshing ond Mointenonce
The visible ports
of the body qre
f inislred in
o hord synthetic boking vornish, the remoining
ports in synthetic vornish.
The underbody is sproy-cooted
with o plostic
compound -
for detoiled informotion, see Chop-
ter '14.9.
Follow the
usuol procedures
when
woshing, cleoning ond polishing
the cor, ond
observe the specific instructions for
the use of
woshing ond cleoning preporotions,
issued by
their monufocturers.
All lights with the exception
of heodlomps
hove cosings of plostic
moteriols qnd
they
should be cleoned onlywith woteror shompoos.
When hosing down the corr
cover the voltoge
regulotor of the olternotor ond
the ignition coil
to protect
them ogoinst sploshing with woter,
ond do not
sproy woter direct on
the door lock
ond the lid covering the fuel
tonk filler neck.
Woshing ond Core of Underbody
Mechonisms
The underbody mechonisms
ore protected
with o synthetic vornish which stonds
well the
usuol woshing procedures.
Protect oll rubberports
ogoinst direct contoct with speciol chemi-
col solvLnts or limit the durotion of this
contoct
to o minimum before
o complete woshing off of
the solvents with woter (by
hosing down, etc.)'
Keep the oil cooler, if fitted on
the cor, in
cleon'condition. Hose
it down when woshing
the cor, ond if dirt still
sticks to the cooling
surfoces, use some of the detergents.
Bodywork Lubricotion
Routine mointenonce includes the
lubricotion
of door hinges ond limiters, hinges
ond releose
mechonismi of the engine bonnet ond boot lid,
the releose mechonism of
the spore wheel,
ond
the leveroge of windscreen wipers. Lubricotion
of inner dolor mechonisms is
included in
speciol
mqintenonce. Lubricote oll occessible mechcnisms
with
high-quolity greoses which
do not
dry, do not
oxldize, ond protect
the mechonisms ogoinst
corrosion for o long time. Oil is
not suitoble due
to its short-time efJect. Any greose con
be used
to lubricqte the
door limiters ond
the front
seot
slide roils.
Lubricotion of SporeWheel Corrier
Bearings-
Remove the spore wheel,
cleon the hinges, ond
opply oil on iheit
upper sides. In oddition, rub
in greose of ony brond.
Lubricotion of Windscreen Wiper
Leveroge -
Remove the cover of the
ioint (o
plostic cup),
f ill it with greose, lubricote the
ioint, ond
rein-
stoll tlre cover.
The Lubricotion of
Inner Door Mechonisms
is possible only
ofter removing the
door ponel
ond the inner 'door
mechonism. Use
only re-
commended greose brcnds.
Lubricote
the bowden
coble of thJwindow wind-up mechonism
with
Fig.15.1211- Lubricotion
of Windscreen Wiper
Leveroge Joint -
ioint cover
230

the
pipes) The
greoter portion of
the f illing
will 'flow
out through the
outlets ond
this will
suffice in the
event of
droining before dismon'
tling the engine.
3.-Uncouple the
hoses from
the engine line
in the engine boy -
See Fi1.15.131A. Proceeding
from und6r the vehicle, pull
the hoses
behind
the cross beorer of
the georbox,
ond let the
liquid flow
from the hoses.
4. Remove the
droin plug of
the cylinder
block ond, if necessory, free
the out'f low using
o length of wire,
etc.
N ot e : In oll, obout 85 0/0
(10.5 litres) of the
coolont will f low out,
ond the difference should
be reckoned with when
refilling the
system-
All ontifreezes ore
to o certoin extent hormful
to the skin. lt is therefore necessory to
protect
oneself qgoinst
contoct with
the liquid, es-
peciolly the eyes (do not touch them
with Fig.15.13/4
-
Heoter Line on
Engine
ond Droin Plug
1 -
droin plug
2 *
pump ond heoter connecting line
3 -
thermostot ond
heoter connecting lirre
fingers soilded witlr
the liquid). Wosh
ony
stolns off the skin os quickly os possible with
soop woter etc.
Rinse the stoins off
the vor-
nished cor bodY with woter.
Fridex-Spolqno Antifreeze
As clreody mentioned, the cooling system is
f illed with this liquid,
or with o solution
of its
concent'rote with
soft
woter, in the
foctory.
For the preporotion of this solution
olw.oys
use soft ond cleon woter. In the following
toble,
its concentrotion in
dependence on
its freezing
resistonce is indicoted. Alternotively, the
con-
centrotion con be determined from
the density.
Fig.15.1312 -
Cooling System
Bleed Cock
Fig.-15.13/3 -
Fuel Tonk
Droin Guord
Sheet ond
PiPe
Plugs Densit
I ot
+20'
I
i
-- I 1.029
; t.oqs I 1.055 1.O57
1.062
| 1.067
I
i 1.074
i 1.080
I
Volume
Ports
Fridex Spolono
i Woter
21 1
38 1
44 47
I
53 -1,5 ity
ot +20 oCFreezi
ng
point "C
-10 -20
-25
-27
-30
-35
-40 -45
-60
79
2
62 '1,5
56 53 1
47 4I
232

17.4 REAR
AXLE MP 3-108
Pinion beoring extrqctor
MP 3-109 Lock
pin guides
MP 3-111 Pinion clomPing brocket
MP 5-101 Bocklosh gouge
MP 5-102 Pinion beoring
retoining fixture
MP 5 104
Differentiql odiustirrg support (2.
)